There's a "secret" I share at the start of any energy healing workshop that is the single most important thing you need to know about healing: regardless of the healing modality used, all healing is self-healing.
For example, in Reiki when I offer you Reiki energy, you draw the energy from me into your body and spirit. All I do is make it available. I'm not the one doing the work; you are.
When you are drawn to a crystal and you use that crystal to affect your vibration through entrainment, you are allowing the crystal to do so. You are choosing to align with its energy, and you are allowing healing through your intent and willingness to match your vibration to the healing frequency of the crystal.
When you take a pill--whether it's a sugar pill or a powerful drug--you alone are determining its effects on your body by your intention, beliefs, and attention (thoughts). It's why the placebo effect is so powerful.
You are a powerful healer. Through your focus, intention, and belief, you allow for the conditions of healing. So regardless of the type of healing you choose; energy, traditional medicine, Reiki, crystals, sound, meditation, or something else altogether, you are the healer. Healing occurs because you allow it.